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Please use this identifier to cite or link to this item: http://hdl.handle.net/11375/18563
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dc.contributor.advisorVlachopoulos, J.-
dc.contributor.authorLidorikis, Stathis-
dc.date.accessioned2015-11-11T20:25:32Z-
dc.date.available2015-11-11T20:25:32Z-
dc.date.issued1970-09-
dc.identifier.urihttp://hdl.handle.net/11375/18563-
dc.description.abstract<p> A high-pressure nitrogen-driven viscometer has been used to study the melt fracture of polystyrene. The polystyrene samples used differed in molecular weight and molecular weight distribution. The weight average molecular weight (Mw) ranged from 97,200 to 1.8 x 10^6 and the distribution breadth (Mw/Mn) from 1.06 to 9.21. Results obtained indicate that the critical shear stress varies linearly with 1/Mw, increases slightly with temperature and is independent of the polydispersity of polymers. This type of behaviour is satisfactorily explained in terms of Graessley's entanglement theory.</p>en_US
dc.language.isoen_USen_US
dc.subjectmelt, fracture, polystyrene, molecular, shear stressen_US
dc.titleMelt Fracture of Polystyreneen_US
dc.typeThesisen_US
dc.contributor.departmentChemical Engineeringen_US
dc.description.degreetypeThesisen_US
dc.description.degreeMaster of Engineering (MEngr)en_US
Appears in Collections:Open Access Dissertations and Theses

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